I have changed the turbo oil supply lines and oil pan gasket but still have a massive oil leak that I can't track down. It is a steady drip leaking from the front of engine directly onto the curve on the downpipe.
Any other parts in that area that are known to leak?
2008 S 80,000 Miles

 

The oil cooler/filter module seals have been starting to leak on higher mileage R56s here and there. Could be leaking down the block and then dripping onto the exhaust.

 

That may be the problem as it wet with oil around the filter. The Bentley manual doesn't cover the repair. Do you what needs to be removed to access the filter housing?

 

I've never done it before. Mine hasn't started to leak yet. You can see the parts breakdown here:

http://www.realoem.com/bmw/showparts...30&hg=11&fg=30

I know Chad has chimed in here from Detroit Tuned saying he's starting seeing the problem at his shop. One thing you need to be really careful of is over-tightening the screws that hold the module against the block. It's an aluminum block so have to be careful not to strip the threads. It's probably worth giving him a call on Monday.

 

Just did mine 2 weeks ago. It also was a big leak like you described.
Its really easy. Remove the hose/pipe between the airbox and the turbo. You have to remove the downpipe and all the heat shields to get to it, but then the whole assembly (heat exchanger, filter, etc) comes out in one piece. The seals are about $40 for both sets.
First step is to drain the coolant. I didnt and made a serious mess.

My car has 76k and the seals were very brittle when i removed them. It was obvious they were leaking.

 

I ordered the gasket set from Detroit Tuned as recommended. Chad was very helpful and recommended to use pinch clamps on the hoses to prevent the coolant mess so I'll give that a try. Since I have changed the turbo oil supply lines, I know the heat shields are a PIA but everything else looks fairly simple.
I feel like I own an old Harley with all the oil stains on my garage floor.
Thanks for all the help!!

 

Changed the filter housing and oil cooler gaskets this weekend and It still leaks!!
Just a small drip compared to before the gasket change but still leaking at the the same place. I was very careful to clean the gasket surfaces and torque the bolts on the filter housing assembly to 9 Lbs.
I'm not ready to take on another 5 hour job that doesn't fix the problem. Are there any other potential leak problems other than what I have changed?

 

Did you change out the oil return line when doing the turbo lines?

 

Yes, the oil return line was changed

 

Obviously, part of the leak was addressed so it was not a total waste. Can you isolate the leak now, after the repair.